Adapter for electrical boxes for wall installation



y 4, 1950 A. N. BORKOWSKI 2,514,176

ADAPTER FOR ELECTRICAL BOXES FOR WALL INSTALLATION Filed Jan. 5, 1949 Patented July 4, 1950 UNITED STATES PATENT OFFICE ADAPTER FOR ELECTRICAL BOXES FOR WALL INSTALLATION Alex N. Borkowski, Chicago Heights, 111.

Application January 3, 1949, Serial No. 68,774

2 Claims. (01. 248-27) 1 2 This invention relates to electrical fittings, or material includes an U-shaped portion 1 the fixtures or appurtenances and more particularly sides of which remote from the base terminate in to an electrical box adapter for installing electhe twin elongated rectangular wings 8, the trical boxes in walls, ceilings, etc. of plaster board, wings extending outwardly from the U portion 1,

rocklath and the like. One object is to provide 5 the sides of the U portion merging into or ena simple, practical electrical box adapter that is gaging the wings at their adjacent lateral edges readily installed by almost anyone without the at points equidistant from their ends, the wings necessity of previous experience, that is adjustdisposed at right angles to the sides of the U.

able to accommodate boxes of different sizes, that The wings and the base of the U portion are is safe in use, of sturdy construction, inexpensive each formed at approximately their longitudinal to manufacture and compact in assembly. centers with a threaded perforation 9.

Other objects and advantages of the invention Referring now to Figs. 1 and 2 the strap 6 is will become apparent from the following descripshown applied to the box closely thereabout. The tion taken in connection with the accompanying size and shape of the wings 8 relative to the wider drawing. 1 sides of the angle plates 4 is such that the wing In the drawing: perforations 9 may be disposed in line with the Fig. 1 is a View partially in section and partially angle plate perforations 5 and the depth of the in elevational perspective showing the instant box is such that with the rear or bottom wall l3 adapter in use, the screw fasteners being omitted. of the box engaged by the base of the U portion Fig. 2 is a longitudinal vertical substantially 0 I of the strap the wings will abut the wall 2 and central sectional view through Fig. 1 but showing the U base perforation 9 will align with the perthe screws. foration in the wall I 3 of the box.

Fig. 3 is a cross sectional view through a Screws [0 are now inserted in the aligned perslightly modified form of the adapter of Figs. 1 forations and the adapter members tightened and 2. in assembled position, this being done after the Fig. 4 is a view in perspective of the strap membox with adapter members, except the angle ber employed, and, plates, have been manually disposed in the wall Fig. 5 is a perspective view of a spacer member opening, the strap 6 gripping the box. Referring employed with one form of adapter. now to Fig. 3 a shallow box is shown and the Like reference characters denote correspondstrap 6 when applied will extend rearwardly be ing parts throughout the several views. yond the rear or bottom wall of the box. Here The reference numeral l denotes a standard an elongated insert spacer ll, U-shaped in cross type electrical box, shallow or deep, for installasection, formed with a perforation l2 in its base tion in the wall 2 in wall perforation 3. A box is interposed with the perforation l2 in line with strap hereinafter more fully described is inserted the box rear wall perforation and strap U-base in the wall opening and the box then applied to perforation 9. Screws ll] of proper length and this box strap and tightened in place, the adapter size are then applied, after the angle plates have is then ready for use. been applied, and the assembly tightened.

The adapter includes a pair of twin angle What is claimed is:

plates 4, the vertex of each plate angle being to 1. In adapters for electrical boxes for wall inone side of the longitudinal center line of the stallation, a pair of twin angle plates, the vertex plate, the wider side of each plate formed at a of each angle plate being to one side of the lonpoint approximately midway between its tergitudinal center line of the plate, the wider side minals with around threaded perforation 5, each r of each plate formed at a point approximately plate being preferably of slightly less extent than midway between its terminals with a threaded the length of one of the longer sides of the Wall perforation, each plate being of slightly less exbox, each plate being applied to the forward or tent than the length of one of the longer sides of free edge of one of the box longer sides with the the wall box, said plates adapted for application angle vertex thereagainst, the plate spaced ap to the longer sides of the wall box with their proximately an equal distance from the ends of vertices upon the free edges of the box longer the box with the narrower side of each angle sides, an U-shaped box strap, twin rectangular plate fiat against a longer box side within the wings at the box strap terminals at right angles box and the wider sides of the angle plates exthereto, said wings formed with threaded perfortending away from each other outside the box. ations in line with said angle plate perforations,

A box strap 6 of a somewhat resilient metal the base of said box strap formed with a threaded perforation aligned with the wall box perforation, and screws connecting said aligned and in line perforations.

2. In adapters for electrical wall boxes for wall installation, a pair of twin angle plates, the vertex of each angle plate being to one side of the longitudinal center line of the plate, the wider side of each plate formed at a point approximately midway between its terminals with a threaded perforation, each plate being of less extent than the length of one of the longer sides of the wall box, said plates adapted for application to the longer sides of the Wall box with their vertices upon the free edges of the box longer sides, an U-shaped box strap, twin rectangular wings at the box strap terminals, said wings formed with threaded perforations inline with said angle plate perforations, the base of said screws connecting the perforations disposed in line with each other.

ALEX N. BORKOWSKI.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,853,228 Richardson Apr. 12, 1932 2,044,650 Thompson June 16, 1936 2,297,862 Bachmann Oct. 6, 1942 

